Apostle Islands National Lakeshore

Study: Apostle Islands water has highest concentration of plastic pollution among national parks studied

Samples collected from the Apostle Islands National Lakeshore had an average of 170 to 225 pieces of microplastic per kilogram of sand, according to the study. (National Park Service)BAYFIELD, Wis. — A recent study of 35 national parks found the waters off an island in northwestern Wisconsin had the highest concentration of plastic pollution. The National Park Service, South Carolina’s…